Hull for submarines.



M. F. HAY

HULL FOR SUBMARINES.

APPLICATION man SEPT-23."19|5.

Patented Jan. 25, 1916. F I G,

1,169,6&0@

FIGHZ R 0 M m m MHRLEYFOTHER/NGHHM HH/ 8/ MI m 64 firm/avers THE COLUMBIA PLANDGRAPH c0" WASHINGTON. I). c.

MARLEY FOTHERINGHAM HAY, E THE HAGUE, NETHERLANDS.

HULL FOR SUBMARINES.

Application filed September 23, 1915.

To all whom it may concern:

Be it known that I, MARLEY Fo'rnnnino- HA1, a subject of the King of Great tain and Ireland, and a resident of T he Hague, Netherlands, have invented a certain new and useful Improved Construction of Hull for Submarines, of which the following is the specification.

The invention has for its object to provide an improved construction of hull for sube type of submarine hull to which broadly the invention relates is that in which there is a pressure resisting hull prope carrying a light non-pressure resisting superstructure. Hitherto such a superstructure has been as it may be said distinct from the hull proper throughout its length, the sections of the hull toward. bow and stern being direct and smooth prolongations of the more amidship section.

According to the invention while the superstructure remains light in construction from amidships a certain distance fore and approaching the bow and the stern, its outline is continued in the heavy full structure. That is to say at certain points fore and aft there is provided a strong bulkhead, forward and aft of which the superstructure contour is continued in the main hull and of like strength. These reinforced ends of the huil are used as ballast tanks, and as they embrace not only the hull proper but aiso what hitherto has been the superstructure, their capacity is relatively very much greater, while, when they are empty and the boat is on the surface, they add to the met-acentric height. increase stability and seaworthiness, and by reducing the longitudinal bending stresses, add to the eiifective strength of a given strength of hull.

An example of the improved construction is diagran'unatically shown on an accompanying sheet of explanatory drawings, Figure 1 being a diagrammatic longitudinal Specification of Letters Patent.

Patented Jan, 25, rain,

Serial No. 52,288.

section of the stern part of an example 01 the improved huli, Fig. 2 a diagrammatic transverse section toward the after end thereof, and Fig. 3 a like section approaching the bow.

in Fig. 1 it will be seen that toward amidships there is a usual heavily plated hull portion proper A and a light nonpressure resisting superstructure B. Toward the stern, however, there is a heavy t "ansverse bulkhead G, and beyond this the whole section is heavily plated and forms a single hull structure D closed at its aft end by a bulkhead E and forming a ballast tank. The same method is proceeded with toward the bow, where the superstructure and hull proper merge in a single heavily plated structure F as seen in section in Fig. 3 and which as in the stern structure forms a ballast tank.

What I claim is z 1.. A hull for submarines comprising an amidships portion and bow and stern portions, the amidships portions consisting oi a pressureresisting hull proper and a non.- pressure resisting superstructure, while in the bow and stern portions the hull proper and the superstructure merge to form a pressure resisting whole.

2. A hull tor submarines comprising an amidships portion and bow and stern portions, the amidships portions consisting of a pressure-resisting hull proper and a nonpressure resisting superstructure, while in the bow and stern portions the hull proper and the superstructure merge to form a pressure resisting whole, and bulkheads at the points of merging of superstructure and hull proper.

3. A hull for submarines comprising an amidships portion and bow and stern per tions, the amidships portions consisting of a pressure-resisting hull proper and a nonpressure resisting superstructure, while in the bowand stern portions the hull proper and the superstructure merge to form a pressure resisting whole, and ballast tanks formed in the merged fore and aft portions.

In testimony whereof I have signed my name to this specification.

MARLEY FO'lHERlNGHAllI HAY.

topics at this patent may be obtained for five cents each, by addressing the Commissioner of Eatents Washington, D. C." 

